Outbreak management in healthcare facilities

What to know

Outbreaks of communicable diseases may occur in healthcare facilities, affecting patients/residents/clients, staff, visitors, contractors, and students. The elderly and immuno-compromised are particularly vulnerable and in general, are more likely to suffer severe outcomes and longer durations of illness.

Facilities must be prepared to prevent, assess and manage outbreaks by planning and responding to triggers or clusters of infections in accordance with the Outbreak management in healthcare facilities – infection prevention and control guideline.

About this guideline

The Outbreak management in healthcare facilities – infection prevention and control guideline (PDF 1183 kB) provides an evidenced-based approach to developing hospital and health service infection prevention and control outbreak management plans to identify and manage outbreaks of infections.  It provides all clinicians, including those from specialties other than infection prevention and control and infectious diseases, with support on the immediate outbreak management actions required when a trigger event occurs. It contains instructions on isolation, communication pathways, trigger investigation and escalation.

Clinician quick reference guide

The clinician quick reference guide provides all clinicians with support on the immediate outbreak management actions required when a trigger event occurs. It contains instructions on isolation, communication pathways, trigger investigation and escalation.

Instructions
All clinicians should be aware of facility trigger events. A trigger event is a point at which the incidence of a particular infectious organism is higher than would be normally expected.
If a trigger event occurs, take immediate action as per: Trigger investigation tool (PDF 245 kB)

Step 1. Isolate the patient/s involved in the trigger event.

  • Initiate standard and transmission-based precautions for all symptomatic patients and close contacts (if required).
  • Acute respiratory infection symptoms: AIRBORNE + STANDARD PRECAUTIONS (PPE is PFR (particulate filter respirator (P2/N95)), protective eyewear, and face shield until causative agent known).
  • Gastrointestinal symptoms: CONTACT + DROPLET (if vomiting) + STANDARD PRECAUTIONS
  • Consider applying outbreak prevention infection prevention and control strategies in consultation with senior nursing and medical staff.

Step 2. Alert the care team and relevant discipline leads.

Follow existing communication mechanisms: key people should include, infection prevention and control (IPC) lead, infectious diseases lead, ward team leader, admitting consultant, allied health, and patient support services.

Step 3. Trigger investigation and risk assessment

  • The IPC team (or duty nurse manager after hours) will commence a trigger investigation on detecting a trigger event as per the instructions in Trigger investigation tool (PDF 245 kB).
  • After hours the duty nurse manager should consult with the infectious disease physician on call or equivalent.
  • Conduct a risk assessment as part of the trigger investigation.
Step 4. Escalate the trigger event if MODERATE OR HIGH as per facility protocols.
MODERATE OR HIGH - Activate Outbreak management plan IMMEDIATELY in consultation with IPC team and/or senior nursing and medical staff (if after hours).
Infection prevention and control strategies
StrategyInstruction
Patient placement

Isolate all symptomatic patients. Cohort confirmed cases as required.

Close doors to isolation/cohort areas if required (is it safe to close doors?).

Consider curtain use and portable air purifiers as necessary.

Place transmission-based precautions signage on entry to isolation/cohort areas indicating recommended measures.

Admission, discharge, transfer, and visitors

Ensure appropriate placement of readmitted patients who are contacts (where recommended).

Close the ward or bay as instructed by executive and IPC professional.

Limit non-essential visitors (where indicated and in consultation with IPC service).

Discharge patients home if safe to do so (ensure discharge summary and patient/carer are alert for any relevant signs and symptoms, actions to take and any ongoing recommended control measures).

Avoid transfer to other healthcare facilities, unless advised and agreed by IPC service.

Avoid patient transfer from affected ward/bay to unaffected another ward/bay. If essential, confirm with receiving area that they are prepared to continue IPC measures until patient is de-isolated.

Healthcare worker management

Encourage staff to stay home when sick. Refer to the Australian Guidelines for the Prevention of Infection in Healthcare 4.2.2 Exclusion periods for healthcare workers with acute infections and your local health facility staff exclusion guidance.

Ensure all staff are vaccinated as indicated. Where indicated by IPC service, dedicate staff to the care of cases for the duration of the incident.

Consider strategies for staff working across multiple clinical areas e.g., phlebotomists, physiotherapists to reinforce appropriate IPC measures.

Hand hygiene and PPE

Alcohol-based hand rub is available at point of care. Soap, water, and paper towel is also available, especially for gastro outbreaks.

Reinforce the 5 moments of hand hygiene during patient care (e.g. remove gloves in patient zone to perform HH as required and reapply new gloves).

Ensure sufficient and appropriate PPE is available for staff to don before entering the patient care area. Doff PPE in a doffing zone adjacent to the patient care area and perform hand hygiene appropriately.

Check hand hygiene auditing data for the affected ward/unit to ensure ward compliance is acceptable. Consider further education specific to hand hygiene if not adequate.

Increase auditing of standard and transmission-based precautions - active observation can increase compliance with IPC practices.

Consider universal mask use during acute respiratory infection outbreaks as source control.

Safe environment

Assess for possible aerosol transmission of organism. Reduce and/or remove equipment that may contribute to aerosol environmental contamination, e.g. portable fans.

Identify modifiable risk factors during high contamination procedures to reduce healthcare worker, equipment, and environmental contamination.

Clean and declutter the ward and clinical space.

Increase frequency of cleaning according to IPC professional instructions, as per provisions in the Management of environmental cleaning services guideline. Clarify environmental cleaning roles within the care team. Consider cleaning of heating, ventilation and air conditioning system, and food preparation areas.

Ensure adherence to cleaning and disinfection of shared patient equipment.

Allocate dedicated patient care equipment for isolation and cohort areas.

Case finding

Consider screening all patients in the ward in consultation with IPC.

Consider environmental sampling for environmentally hardy organisms. Consult with laboratory staff.

Consider ribotyping C. difficile specimens during this phase to determine if the strains are the same and/or if a hypervirulent strain is present.

Consider whole genome sequencing MROs to identify linkages that may be separated by significant time periods and constitute part of an outbreak. Facilities should develop processes to monitor for related infections or colonisation.

Ensure patients are receiving appropriate treatment e.g., antimicrobials.

Contact management

Isolate and test all contacts as directed by outbreak management team (or lead physician advice).

Do NOT cohort contacts with unexposed patients.

Ensure that contacts receive immunisation or chemoprophylaxis as appropriate.

De-isolation criteriaAs per IPC or medical team.
Communication

Consider signage at entry of ward.

Consider advising patients and carers of outbreak (in person, via phone, or information sheet) while maintaining patient confidentiality.

Alert relevant staff to outbreak situation as required.

Other resources

Information for consumers

The following guides has been developed to provide patients with information regarding outbreaks.

Related links

Queensland Health resources

Queensland legislation

National resources

Last updated: 18 September 2025